Steam-controlling device.



G. RESTUCGI.

STEAM GONTROLLING DEVICE. APPLICATION FILED @11.19, 1909.

Patented May 3, 1910.

GIUSEPPE RESTUCCI, OF NAPLES, ITALY.

STEAM-CONTROLLING DEVICE.

Specification of Letters Patent.

Patented May 3, 1910.

Application filed March 19, 1909. Serial No. 484,441.

To all whom 'it may concern.'

Be it known that I, Grnsrrn REs'rUcor, a subject of the King of Italy, residing at Naples, Italy, mechanical engineer, have invented certain new and useful Improvements in Steam- Controlling Devices, of which the following is a specification The invention relates to devices for controlling the steam supplied to cylinders of engines; and it consists of the novel construction and arrangement of the several parts, and their combination, as will be hereinafter fully described, and particularly stated in the claims.

The chief object of the invention is to provide a steam-controlling device, directly inter osed between the su ply and distributing evices, by means of which the steam is dried on its passage therethrough, so that a highly dried, superheated steam, not cooled by intermediate elements, may be 'supplied to the cylinders of an engine, re-

sulting in an improved operation of the latter', besides economy in fuel and feedwater, the small difference of pressure between the generator and engine, which ressure is due to the controlled passage of the steam, being balanced by its greater speed, due to its being thoroughly dried on its passage through the steam-controlling device.

In the drawings: Figure 1 is a longitudinal section of my improved device; Fig. 2 is a face view of the same; showing the mechanism for operating the valve in section, and Fig. 3 1s a modified form of the device.

Referring to Figs. l and 2, the numerals 1 and 2 indicate respectively two sections of a suitable valve casing, coupled together' in any well-known manner. Located within the section 2 is a conical shell 3 provided with radial slots 4, and mounted on said shell is a corresponding] shaped rotaryvalve 5, also provided with radial slots 6 adapted to register with the slots in the shell. The valve has formed on its periphery a section of ear-teeth 7 in mesh with a worm 8, forme on a shaft 9, which is journaled in suitable bearings 10 and 11. The shaft is provided with a suitable stuffing-box 12, and has keyed on its outer end an arm 13 provided with a spring-pressed locking-rod 14, adapted to lock the shaft, and thereby the valve, against rotation, so

1 as to regulate the area of the openings in the valve and shell, and thereby control the passage of the steam.

The passage of the steam through the controlling-tevice, which, as heretofore stated, is located between the supply and distributing-pipes, (not shown), is regulated by the valve 5, the pressure of the steam being reduced, by friction, in passing through the openings or passaofes in the valve, and its shell, the width of the openings being regulated by the worm-gear, which is operated by the arm 13 upon the withdrawal of the locking-rod. The steam is also dried and superheated by its frictional passage through the valve, and is thus delivered to the distributing-pipe.

In the modification shown in Fig. 3, the numeral 15 indicates a steam supply-pipe provided with a plurality of passages or ports 16, said pipe being closed at one end and having a delivery pipe 17 at the other end. Operative in the supply-pipe is a perforated piston 18, ada ted to be operated to close or partially c ose the passages or ports 16. The piston is provided with a screw-threaded rod 19, operated by a suitable shaft 20, through the medium of bevel gears 21 and 22, so that by manipulating the shaft 20, the piston may be raised to cover or partially cover the ports 16, or lowered to uncover them. The steam passing through said ports is throttled by the operation of the piston, and passing through the passages or channels in said piston is dried, superheated and passed directly to the main or distributing-pipe.

Having thus fully described my invention, what I claim is:

1. A device for throttling, drying and superheating steam, comprising a member provided with passages and means for regulatirw the area of said passages, said member eing interposed between the steam supply and distributing means.

2. A device for throttling, drying and superheating steam, comprising a member provided with passaofes, means for regulating the area of said passages, and means for holding said area-regulating means at a xed position.

3. A device for throttling, drying and superheating steam comprising a sectional casing, a fixed slotted shell, a corresponda sectional casing, a Xed shell provided with openings therethrough, a rotatable valve, provided With correspondingly shaped openings, mounted in said shell, Said valve being provided With gear-teeth, a

Worm-shaft, and means for rotating said shaft to operate the valve, whereby the areaof the openings in the shell may be regulated.

In testimony whereof I have aixed my 25 signature in presence of tvvo Witnesses.

. GIUSEPPE RESTUCCI. lVitnesses VINCENZE LoURY, FRANCESCO SAoLo. 

